You make good points, and ok maybe the data isn't so expensive. However even with a tablet I'll still have my cell, which requires calling and texts (the things tablets don't really do). So the added pre/post-paid data is still going to be on top of those costs. So $20 a month isn't the true cost. $20 on top of the $20-30 we're already spending. And for 1GB those costs really aren't worth it. Imo of course.